5800 Hz 455 kHz AM 8-pole Collins filter. All remaining inventory of the #707 has been sold as of December 2017. It is no longer available from INRAD.

Note: bandwidth is measured by the manufacturer at -3 dB; we measured shape factor at -60/-6 dB.

Note: Collins mechanical filters are no longer in production. INRAD has inventory on hand that should last through 2017. Once our inventory is sold, we will discontinue offering this item. There is no drop-in replacement available.